Attachment for glass-drawing tanks.



M. J. HBALY. ATTACHMENT FOR GLASS DRAWING TAN APPLICATION YILED NOV. 13, 1911. 1,084,448.

UNITED STAEES PATENT oEEreE.

HEALY, UF BRADFORD,l PENNBYLVANA.

{ j Speciuetiou ot Letten Yufceut. Anemia'maximum 1a, im, serial-i. 050,903.

Ar'rAcHnENT non onnssfnfmiwmwrnxs.

PatentedAug. 6, 1912.

tachments for Glass-DraWing Tanks; andy I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertnins to make und use the same; 1, f. l

' invention relates to im improvement in attachments for glass drawing tanks, 'the object being. to provide a. fender for pr0 tectng the claytop stone'around the draw-1" ing openingl therein, and vertically movable' ni'ennsjprojeetng downw'rdly through the fender for engagementl'witll `the floating ring for holdingnnd centering the letter during the drawingoperation, rind In*y invention leonsists in the parte nndfconioina# tion ofparts as will bemore vfully explained und pointed out in the claims: i

In the neeouipmiying drawings, Figure l in n plain View of my iiuprovemeutend Fig.

2 is n view partly in section and partly ,in

elevation. Y i l v -5 l represents the lop stone of a, glass: melt- .ingr tank und L', n vlender plete or ring overlmngring the drawing" opening;` il in the to Hiono 'llhii` iop sione is generally end pret3 rrnlily umile in seeions eimped to forni the drnwing opi-'ning Il ihroufgh which the cylinders nre drown from the molten floss in the mnh` :ind 'nz-e nnnle of refrn-tory ninterinl Whig-l1 aller exposure tov ille intense lient ol' :lne mollen einem, omelia and disintegration, und requires frequent repairs und replacement. 'Anreise ille ooms-tot of the cylinders :und tools with the walls of the drawing opening- 2, censors small particles of clay to ln-onli oil' nini 'l'ztilinto the gloss which serioneiy impairs'l-lie qnnlitjfoi' the letter,

The object olf the lender plate or ring 2 :drove referred to lo protect the exposed walls ol' the drawing; opening $5 from Contact with the tools or cylinder, and nlso to form u sent for the fingers fi which guide and hold .the floating( rings 5 in plaire centrally under the li-owing opening. This fender ring 0r pinto' 2 is umile lint on its underside so 'as to rest solidly on the toi sione l sind is of.

legis internal diameter than said opening 5l, so rn,- to owrlmng the latter, and time protet-vt' the ley wells from contact with the ave invented cer-` through the outlet 15.

tools andthe cylinder, 'end also reduces the size of thedrnwing opening to more closely approximate-therein of the c linders to' be drawn, thus 'dispensing with: e use-of mov able ring shields which 'are employed for. reducing the size of thmdrawing opening and also for shielding and protecting :the cylinder as it is being drawn. :It is provided with a. water chamber 6 as shown in Fig. 2, and the 'said chamber is connected to an inlet pipe 'I und an outlet pipe 8, through .which a cotinuous circulationvo water, may be: maintained through'the fen? der plate or ring 2, thus keel ing the latter comparatively ycoolY This ender ring or plate may' besecured in place, but this is not essential.

4 aretwo water cooled guiding and centering fingers, each mounted in the uides 9,

lund V,suspended by cables 10 pass ng over pulleys l1 and carrying e eounterbalance l2.

A'Flieseiingers -arehollow and preferably mede of pipe bent so as to overhangthe fender ring or plate 2 and project suliciently below the same to engage the inner wall of the floating ring 5,'which, as is well known, floats on theeurfaee vof the meltedfglass, and in the 'presentinstance is made with a beveled innervwall, converging downwardly,- so that the fingers may engage and hold the ring 5 ziguinstimovement. Euch linger is provided Wit'h water supply pipe 13 passing through a peeking 14 et the upper end of the finger, und terminating near the lower closed end of the finger as shown in'dotted lines in Fig. 2, This supply pipe i3 is considerably smaller than tbe bore of the finger et, so that the water discharged into the lotler een poss up the linger at the outer side oi' the supply pipe and escupe therefrom. By this arrangement the incoming water is shielded, to n largeextent, from the heat, by the outgoing Water surrounding the supply pipe, so that comparatively cool water will he discharged inio the linger et the lower end thereof.

Atl'er e cylinder has been drawn und. new

ered from the gloss in the trink, the fingers are mined nous to permit the floating ring 5 to be pushed into the tank so that the partly cooled gloss therein will be re heated. A iter another ring has been moved engagement with the inner face of theiiouting ringz,r to center und hold some' in position the friction and icontact between` thev ,ringA shield and top stone,and consequent chi ping of both, and by the employment' of t` e, fender I secure a closure for the'drawin opening around the cylinder that is as e .fective as the ring sh1eld,a`nd-'at the same L-.jme protect the top' stone ad'acent theV drawing opening -from injury, ue ,to the falling glass when acylinder' breaks yend also prevents particles of clay a'nd .broken glass from falling into the tank. With the fender, when breakage occurs, Stich as falls o into the tank Will`- fall' within the floating ring; which latter can then be pshedbac into the tank for reheating -or skimmed lout of the ring as desired. l .p Itis evident that many slightl changesmight be resorted to in the relative arrangement of parts shown and described without departing Vfrom the spirit and sco invention. Hence I would have 1t understood thatv I dov not wish to confine myself to the exact construction and arrangementof parts shown and described but,

Having fully described myy invention what I claim as newand desire to secure by Letters-Patent,`is:' l 1. The combination with the top stone of a. glass melting tenk having a circular ing opening (therein,y ofy a water -cooled of my* i `jected below said-ring, `or late;

fender having'an o enin therein,` the said fender resting lon t 'etan andaround the drawing openin therein, and vvertically 4 movable guide i 4adapted to be projected into the tan within theopening in the fender for h'oldig 'the 'floating ring in position.

2. .Thelcombination with the isit-onel y a glass meltin tank-havin@ d circular drnwing openingt erein, of a opening smaller -thanftl 'drawing opening, u

the said fender vresting on the vtan andoverhangingthe drawing peninggandfver- 59 A tically movable E{iosa/einig ring guiding lingers j.

adapted to be projected into the' tank within Vthe fender opening. 3. The co "bination' with the top stoneof,

a glass melting tankha'vin "a drawing' open-4.

ing, of awater cooled' fen er restingon 'the'y .,i

tank and overhanging the drawrng' opening,

and a serles of water 'cooledfioatingring guiding fingers mounted -to mo'v'evertically, 65.

fender ring'or plate and adapted specification' inv the ing witnesses'. n

l Witnesses:

w. c. Puma? ylTfP. Gl'onunen. y'

the lower ends ofjsaid fingersbeinglwithin, l the plane, of the circular opening yin 'the .t0 bepm;-

presenccof two'subscribf ,"Q i I' I 

